Java List Zip zip(List> lists)

Description

zip

License

Open Source License

Declaration

public static <T> List<List<T>> zip(List<List<T>> lists) 

Method Source Code

//package com.java2s;
/*/*from w  w w  .  j a v  a2s  .  c o  m*/
 * AACalc - Asset Allocation Calculator
 * Copyright (C) 2009, 2011-2016 Gordon Irlam
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.ArrayList;
import java.util.List;

public class Main {
    public static <T> List<List<T>> zip(List<List<T>> lists) {
        List<List<T>> result = new ArrayList<List<T>>();
        for (int i = 0; i < lists.get(0).size(); i++) {
            List<T> l = new ArrayList<T>();
            for (List<T> in : lists) {
                l.add(in.get(i));
            }
            result.add(l);
        }
        return result;
    }

    @SafeVarargs
    public static <T> List<List<T>> zip(List<T>... lists) {
        List<List<T>> result = new ArrayList<List<T>>();
        for (int i = 0; i < lists[0].size(); i++) {
            List<T> l = new ArrayList<T>();
            for (List<T> in : lists) {
                l.add(in.get(i));
            }
            result.add(l);
        }
        return result;
    }
}

Related

1. zip(final List l1, final List l2)
2. zip(List a, List b)
3. zip(List> lists)
4. zipDoubleArray(List lists)
5. zipper(List> listOfLists)